Pearce Grip Grip Extension, Fits LCP, Black, 2 Pack PGLCP These extensions replace the magazine base plate and retain all other factory components. They do not alter the capacity of the magazine. These units provide better comfort and control by adding approximately 1/2" of gripping surface. These extensions will only fit the LCP and LCPII in .380 cal and will not work on the 9mm Ruger models.